<div class="col-lg-12">
    <div class="card">
        <div class="card-header"><h4>按钮</h4></div>
        <div class="card-body">
            <div class="table-responsive">
                <table class="table table-bordered table-striped table-vcenter">
                    <thead>
                    <tr>
                        <th class="w-15">按钮</th>
                        <th>class=""</th>
                        <th class="w-15">按钮</th>
                        <th>class=""</th>
                    </tr>
                    </thead>
                    <tbody>
                    <tr>
                        <td><button class="btn btn-default btn-w-md" type="button">默认按钮</button></td>
                        <td><code>btn btn-default</code></td>
                        <td><button class="btn btn-primary btn-w-md" type="button">主要颜色按钮</button></td>
                        <td><code>btn btn-primary</code></td>
                    </tr>
                    <tr>
                        <td><button class="btn btn-success btn-w-md" type="button">绿色按钮</button></td>
                        <td><code>btn btn-success</code></td>
                        <td><button class="btn btn-info btn-w-md" type="button">一般信息按钮</button></td>
                        <td><code>btn btn-info</code></td>
                    </tr>
                    <tr>
                        <td><button class="btn btn-warning btn-w-md" type="button">橙色按钮</button></td>
                        <td><code>btn btn-warning</code></td>
                        <td><button class="btn btn-danger btn-w-md" type="button">红色按钮</button></td>
                        <td><code>btn btn-danger</code></td>
                    </tr>
                    <tr>
                        <td><button class="btn btn-secondary btn-w-md" type="button">次要颜色按钮</button></td>
                        <td><code>btn btn-secondary</code></td>
                        <td><button class="btn btn-dark btn-w-md" type="button">黑色按钮</button></td>
                        <td><code>btn btn-dark</code></td>
                    </tr>
                    <tr>
                        <td><button class="btn btn-purple btn-w-md" type="button">紫色按钮</button></td>
                        <td><code>btn btn-purple</code></td>
                        <td><button class="btn btn-pink btn-w-md" type="button">粉红色按钮</button></td>
                        <td><code>btn btn-pink</code></td>
                    </tr>
                    <tr>
                        <td><button class="btn btn-cyan btn-w-md" type="button">青色按钮</button></td>
                        <td><code>btn btn-cyan</code></td>
                        <td><button class="btn btn-yellow btn-w-md" type="button">黄色按钮</button></td>
                        <td><code>btn btn-yellow</code></td>
                    </tr>
                    <tr>
                        <td><button class="btn btn-brown btn-w-md" type="button">棕色按钮</button></td>
                        <td><code>btn btn-brown</code></td>
                        <td><button class="btn btn-link" type="button">链接形式</button></td>
                        <td><code>btn btn-link</code></td>
                    </tr>
                    </tbody>
                </table>
            </div>
        </div>
    </div>
</div>

<div class="col-lg-12">
    <div class="card">
        <div class="card-header"><h4>其他按钮样式</h4></div>
        <div class="card-body">
            <div class="row">
                <div class="col-lg-6">
                    <h5>圆角按钮</h5>
                    <p><code>class</code> 中增加 <code>.btn-round</code>。</p>
                    <div class="example-box">
                        <button class="btn btn-w-md btn-round btn-primary">主色按钮</button>
                        <button class="btn btn-w-md btn-round btn-secondary">次色按钮</button>
                        <button class="btn btn-w-md btn-round btn-success">绿色按钮</button>
                        <button class="btn btn-w-md btn-round btn-info">信息按钮</button>
                        <button class="btn btn-w-md btn-round btn-warning">橙色按钮</button>
                        <button class="btn btn-w-md btn-round btn-danger">红色按钮</button>
                    </div>
                </div>
                <div class="col-lg-6">
                    <h5>带图标的按钮</h5>
                    <p><code>class</code> 中增加 <code>.btn-label</code>，<code>button</code> 元素中增加 <code>label</code> 元素。</p>
                    <div class="example-box">
                        <button class="btn btn-label btn-primary"><label><i class="mdi mdi-checkbox-marked-circle-outline"></i></label> 确认提交</button>
                        <button class="btn btn-label btn-info"><label><i class="mdi mdi-play-circle-outline"></i></label> 播放</button>
                        <button class="btn btn-label btn-warning"><label><i class="mdi mdi-delete-empty"></i></label> 清空数据</button>
                        <button class="btn btn-label btn-danger"><label><i class="mdi mdi-close"></i></label> 删除</button>
                    </div>
                </div>
            </div>

            <div class="row">
                <div class="col-lg-12">
                    <hr>
                    <h5>指定按钮宽度</h5>
                    <p>可使用 <code>.btn-w-xs</code>, <code>.btn-w-sm</code>, <code>.btn-w-md</code>, <code>.btn-w-lg</code> 和 <code>.btn-w-xl</code> 类指定按钮宽度。</p>
                    <div class="example-box">
                        <button class="btn btn-w-xs btn-primary">极小宽</button>
                        <button class="btn btn-w-sm btn-primary">小的</button>
                        <button class="btn btn-w-md btn-primary">中等宽度</button>
                        <button class="btn btn-w-lg btn-primary">宽按钮</button>
                        <button class="btn btn-w-xl btn-primary">超宽</button>
                    </div>
                    <hr>
                </div>
                <div class="col-lg-6">
                    <h5>按钮大小</h5>
                    <p>使用 <code>.btn-lg</code>, <code>.btn-sm</code> 和 <code>.btn-xs</code> 类指定按钮的大小。</p>
                    <div class="example-box">
                        <button class="btn btn-lg btn-primary">大的按钮</button>
                        <button class="btn btn-primary">默认按钮</button>
                        <button class="btn btn-sm btn-primary">小按钮</button>
                        <button class="btn btn-xs btn-primary">极小的按钮</button>
                    </div>
                </div>
                <div class="col-lg-6">
                    <h5>块级元素按钮</h5>
                    <p>加上 <code>.btn-block</code> 类可以使得按钮变成一个块级元素按钮。</p>
                    <button class="btn btn-block btn-primary">块级元素按钮</button>
                </div>
            </div>

        </div>
    </div>
</div>

<div class="col-lg-12">
    <div class="card">
        <div class="card-header"><h4>切换选择按钮</h4></div>
        <div class="card-body">
            <div class="row">

                <div class="col-lg-4">
                    <h5>单个按钮</h5>
                    <button class="btn btn-primary" data-toggle="button">单按钮切换</button>
                </div>

                <div class="col-lg-4">
                    <h5>多选</h5>
                    <div class="btn-group btn-group-toggle" data-toggle="buttons">
                        <label class="btn btn-primary active">
                            <input type="checkbox" checked autocomplete="off">
                            <i class="mdi mdi-format-text"></i>
                        </label>
                        <label class="btn btn-primary">
                            <input type="checkbox" autocomplete="off">
                            <i class="mdi mdi-format-underline"></i>
                        </label>
                        <label class="btn btn-primary">
                            <input type="checkbox" autocomplete="off">
                            <i class="mdi mdi-format-italic"></i>
                        </label>
                    </div>
                </div>

                <div class="col-lg-4">
                    <h5>单选</h5>
                    <div class="btn-group btn-group-toggle" data-toggle="buttons">
                        <label class="btn btn-primary active">
                            <input type="radio" name="options" id="option1" autocomplete="off" checked>
                            <i class="mdi mdi-format-align-left"></i> </label>
                        <label class="btn btn-primary">
                            <input type="radio" name="options" id="option2" autocomplete="off">
                            <i class="mdi mdi-format-align-center"></i> </label>
                        <label class="btn btn-primary">
                            <input type="radio" name="options" id="option3" autocomplete="off">
                            <i class="mdi mdi-format-align-right"></i> </label>
                        <label class="btn btn-primary">
                            <input type="radio" name="options" id="option3" autocomplete="off">
                            <i class="mdi mdi-format-align-justify"></i> </label>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<div class="col-lg-12">
    <div class="card">
        <div class="card-header"><h4>按钮组</h4></div>
        <div class="card-body">

            <div class="row">
                <div class="col-lg-4">
                    <h5>默认</h5>
                    <div class="btn-group">
                        <button class="btn btn-default">左</button>
                        <button class="btn btn-default">中</button>
                        <button class="btn btn-default">右</button>
                    </div>
                    <hr>
                    <h5>圆角</h5>
                    <div class="btn-group btn-group-round">
                        <button class="btn btn-default">左</button>
                        <button class="btn btn-default">中</button>
                        <button class="btn btn-default">右</button>
                    </div>
                    <hr>
                    <h5>两端对齐的</h5>
                    <div class="btn-group btn-group-justified">
                        <button class="btn btn-default">左</button>
                        <button class="btn btn-default">中</button>
                        <button class="btn btn-default">右</button>
                    </div>
                </div>
                <div class="col-lg-4 text-center">
                    <h5>垂直的</h5>
                    <div class="btn-group-vertical">
                        <button class="btn btn-default">上</button>
                        <button class="btn btn-default">中</button>
                        <button class="btn btn-default">下</button>
                    </div>
                    <hr>
                    <h5>嵌套的</h5>
                    <div class="btn-group">
                        <button class="btn btn-default"><i class="mdi mdi-replay"></i></button>
                        <button class="btn btn-default"><i class="mdi mdi-magnify"></i></button>
                        <div class="btn-group">
                            <button id="btnGroupDrop1" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                                导出 <span class="caret"></span>
                            </button>
                            <ul class="dropdown-menu">
                                <li><a href="#!"><i class="mdi mdi-zip-box"></i> Zip</a></li>
                                <li><a href="#!"><i class="mdi mdi-file-pdf"></i> PDF</a></li>
                                <li><a href="#!"><i class="mdi mdi-file-excel"></i> Excel</a></li>
                            </ul>
                        </div>
                    </div>
                </div>
                <div class="col-lg-4">
                    <h5>大小尺寸</h5>
                    <div class="btn-group btn-group-xs">
                        <button class="btn btn-default">左</button>
                        <button class="btn btn-default">中</button>
                        <button class="btn btn-default">右</button>
                    </div>
                    <br><br>
                    <div class="btn-group btn-group-sm">
                        <button class="btn btn-default">左</button>
                        <button class="btn btn-default">中</button>
                        <button class="btn btn-default">右</button>
                    </div>
                    <br><br>
                    <div class="btn-group">
                        <button class="btn btn-default">左</button>
                        <button class="btn btn-default">中</button>
                        <button class="btn btn-default">右</button>
                    </div>
                    <br><br>
                    <div class="btn-group btn-group-lg">
                        <button class="btn btn-default">左</button>
                        <button class="btn btn-default">中</button>
                        <button class="btn btn-default">右</button>
                    </div>
                </div>
                <div class="col-lg-12">
                    <hr>
                    <h5>工具栏</h5>
                    <div class="btn-toolbar">
                        <div class="btn-group">
                            <button class="btn btn-default"><i class="mdi mdi-format-align-left"></i></button>
                            <button class="btn btn-default"><i class="mdi mdi-format-align-center"></i></button>
                            <button class="btn btn-default"><i class="mdi mdi-format-align-right"></i></button>
                            <button class="btn btn-default"><i class="mdi mdi-format-align-justify"></i></button>
                        </div>
                        <div class="btn-group">
                            <button class="btn btn-default"><i class="mdi mdi-format-bold"></i></button>
                            <button class="btn btn-default"><i class="mdi mdi-format-italic"></i></button>
                            <button class="btn btn-default"><i class="mdi mdi-format-underline"></i></button>
                        </div>
                        <div class="btn-group">
                            <button class="btn btn-default"><i class="mdi mdi-floppy"></i></button>
                        </div>
                    </div>
                </div>
            </div>

        </div>
    </div>
</div>

<div class="col-lg-12">
    <div class="card">
        <div class="card-header"><h4>下拉菜单按钮</h4></div>
        <div class="card-body">

            <div class="row">
                <!--单按钮下拉菜单-->
                <div class="col-lg-6">
                    <h5>单按钮下拉菜单</h5>
                    <div class="btn-group">
                        <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            周杰伦 <span class="caret"></span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">夜的第七章</a></li>
                            <li><a href="#!">半兽人</a></li>
                            <li><a href="#!">上海一九四三</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">告白气球</a></li>
                        </ul>
                    </div>
                    <div class="btn-group">
                        <button type="button" class="btn btn-success dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            陈奕迅 <span class="caret"></span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">浮夸</a></li>
                            <li><a href="#!">爱情转移</a></li>
                            <li><a href="#!">六月飞雪</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">十年</a></li>
                        </ul>
                    </div>
                    <div class="btn-group">
                        <button type="button" class="btn btn-info dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            河图 <span class="caret"></span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">窗前明月光</a></li>
                            <li><a href="#!">不见有情</a></li>
                            <li><a href="#!">春日迟</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">自为风月马前卒</a></li>
                        </ul>
                    </div>
                    <div class="btn-group">
                        <button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            陈楚生 <span class="caret"></span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">思恋一个荒废的名字</a></li>
                            <li><a href="#!">有没有人告诉你</a></li>
                            <li><a href="#!">经过</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">风起时想你</a></li>
                        </ul>
                    </div>
                    <div class="btn-group">
                        <button type="button" class="btn btn-warning dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            光良 <span class="caret"></span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">第一次</a></li>
                            <li><a href="#!">童话</a></li>
                            <li><a href="#!">天堂</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">右手边</a></li>
                        </ul>
                    </div>
                </div>

                <!--拆分按钮下拉菜单-->
                <div class="col-lg-6">
                    <h5>拆分按钮下拉菜单</h5>
                    <div class="btn-group">
                        <button type="button" class="btn btn-primary">周杰伦</button>
                        <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            <span class="caret"></span>
                            <span class="sr-only">切换下拉列表</span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">夜的第七章</a></li>
                            <li><a href="#!">半兽人</a></li>
                            <li><a href="#!">上海一九四三</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">告白气球</a></li>
                        </ul>
                    </div>
                    <div class="btn-group">
                        <button type="button" class="btn btn-success">陈奕迅</button>
                        <button type="button" class="btn btn-success dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            <span class="caret"></span>
                            <span class="sr-only">切换下拉列表</span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">浮夸</a></li>
                            <li><a href="#!">爱情转移</a></li>
                            <li><a href="#!">六月飞雪</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">十年</a></li>
                        </ul>
                    </div>
                    <div class="btn-group">
                        <button type="button" class="btn btn-info">河图</button>
                        <button type="button" class="btn btn-info dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            <span class="caret"></span>
                            <span class="sr-only">切换下拉列表</span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">窗前明月光</a></li>
                            <li><a href="#!">不见有情</a></li>
                            <li><a href="#!">春日迟</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">自为风月马前卒</a></li>
                        </ul>
                    </div>
                    <div class="btn-group">
                        <button type="button" class="btn btn-secondary">陈奕迅</button>
                        <button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            <span class="caret"></span>
                            <span class="sr-only">切换下拉列表</span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">思恋一个荒废的名字</a></li>
                            <li><a href="#!">有没有人告诉你</a></li>
                            <li><a href="#!">经过</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">风起时想你</a></li>
                        </ul>
                    </div>
                    <div class="btn-group">
                        <button type="button" class="btn btn-warning">光良</button>
                        <button type="button" class="btn btn-warning dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            <span class="caret"></span>
                            <span class="sr-only">切换下拉列表</span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">第一次</a></li>
                            <li><a href="#!">童话</a></li>
                            <li><a href="#!">天堂</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">右手边</a></li>
                        </ul>
                    </div>
                </div>

                <!--向上弹出菜单按钮-->
                <div class="col-lg-6">
                    <hr>
                    <h5>向上弹出菜单按钮</h5>
                    <div class="btn-group dropup">
                        <button type="button" class="btn btn-primary">周杰伦</button>
                        <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            <span class="caret"></span>
                            <span class="sr-only">切换下拉列表</span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">夜的第七章</a></li>
                            <li><a href="#!">半兽人</a></li>
                            <li><a href="#!">上海一九四三</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">告白气球</a></li>
                        </ul>
                    </div>
                    <div class="btn-group dropup">
                        <button type="button" class="btn btn-success">陈奕迅</button>
                        <button type="button" class="btn btn-success dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            <span class="caret"></span>
                            <span class="sr-only">切换下拉列表</span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">浮夸</a></li>
                            <li><a href="#!">爱情转移</a></li>
                            <li><a href="#!">六月飞雪</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">十年</a></li>
                        </ul>
                    </div>
                    <div class="btn-group dropup">
                        <button type="button" class="btn btn-info">河图</button>
                        <button type="button" class="btn btn-info dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            <span class="caret"></span>
                            <span class="sr-only">切换下拉列表</span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">窗前明月光</a></li>
                            <li><a href="#!">不见有情</a></li>
                            <li><a href="#!">春日迟</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">自为风月马前卒</a></li>
                        </ul>
                    </div>
                    <div class="btn-group dropup">
                        <button type="button" class="btn btn-secondary">陈奕迅</button>
                        <button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            <span class="caret"></span>
                            <span class="sr-only">切换下拉列表</span>
                        </button>
                        <ul class="dropdown-menu">
                            <li><a href="#!">思恋一个荒废的名字</a></li>
                            <li><a href="#!">有没有人告诉你</a></li>
                            <li><a href="#!">经过</a></li>
                            <li role="separator" class="divider"></li>
                            <li><a href="#!">风起时想你</a></li>
                        </ul>
                    </div>
                    <div class="btn-group dropup">
                        <button type="button" class="btn btn-warning">光良</button>
                        <button type="button" class="btn btn-warning dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                            <span class="caret"></span>
                            <span class="sr-only">切换下拉列表</span>
                        </button>
                        <ul class="dropdown-menu">
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